Stairwells account for about 2% of multistory commercial building floorspace, with an average of one light fixture for each 58 sq.ft. of stairwell, according to the International Facility Management Association. It is trafficked 3-5% of the average day. This application has emerged as a strong potential opportunity for energy-saving controls. In the near future, in […]
Although the national economic recovery is now two and a half years old, construction spending has continued to contract. A multitude of factors prevented a recovery for this beleaguered industry in 2011. Lenders that have been extremely reticent to finance construction projects, budget shortfalls at all levels of government, the ripple effect of overbuilding, depletion […]
In July 2011, the Department of Energy recognized the ASHRAE/IES 90.1-2007 standard as the new national energy standard, superseding the 2004 version. In a bold move, on October 19, 2011, DOE recognized the 2010 version of 90.1 as the new national energy standard. By October 18, 2013, all states in the United States must put […]
When designing an energy-saving daylight harvesting control system, a critical decision is to establish lighting control zones, identifying lighting loads to be separately controlled. Before this decision can be made, however, we must first determine the daylight zones. A daylight zone, also called the daylight area (expressed in square feet), is defined by the ASHRAE/IES […]
As demand for lighting controls continues to grow, advanced solutions are becoming increasingly specified while also becoming increasingly sophisticated. This increasing sophistication translates to greater owner benefit but can also pose greater risk of design and installation mistakes. In a perfect world, designers create clear and detailed lighting control requirements that are easily installed by […]
Dimming is growing in popularity due to energy codes, green construction and user interest in flexibility and maximizing energy savings. High-intensity discharge (HID) lamp dimming is no exception, and with continuing development of electronic HID ballasts, continuous HID lamp dimming is easier to achieve, in a broader range of wattages, than ever before. This whitepaper by the Lighting Controls Association describes dimming options for popular HID lamp types and presents NEMA guidelines for dimming HID lamps.
ELECTRICAL CONTRACTOR recently published a very informative article detailing the results of a survey of more than 700 readers about lighting and lighting controls, conducted by Renaissance Research & Consulting.
Because of the strong energy savings potential offered by daylight harvesting, coupled with advancing technology, codes and standards are now beginning to address daylight harvesting—specifically, International Energy Conservation Code (IECC) 2009, ASHRAE/IES 90.1-2010, ASHRAE 189.1 and Title 24-2008.
QUICKTRONIC QTO by OSRAM SYLVANIA
A UL Type II wet location, high efficiency HID 50% step-dimming ballasts for standard 100W to 200W MH and HPS lamps.
ASHRAE/IES 90.1, Energy Standard for Buildings Except Low-Rise Residential Buildings is published every three years to provide states and other jurisdictions with a model commercial building energy code. The 2010 version, published November 2010, represents the most dramatic revision of the standard since 1999. In this two-part series of special reports by the Lighting Controls Association, we will examine the new energy standard in detail. Part one, presented here, focuses on changes to the prescriptive lighting power requirements as well as changes to scope and administrative requirements. Part two, to be published next month, will focus on the standard’s extensive list of new mandatory and optional lighting control requirements.